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3 years ago

Help please!!!!!!!

1 answer:

6 0

<span>This would be a bell curve with a z-score of greater than +2.00, since 3 minutes is exactly two standard deviations greater than the mean of 2.00. Looking at a z-score table for the proportion of the curve that lies in the 1-tailed area greater than 2.00, we find that the value is .0228. This would be the probability that the conversation is over three minutes: 0.0228 or 2.28%.</span>

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What is the percent of incerse between 10 and 24

lisabon 2012 [21]

To work out the percent increase, we can use the following equation:

24 / 10 = 2.4
2.4 x 100 = 240%

Hope I helped!

6 0

2 years ago

Maria Contrerras earned $53,000 in taxable income. She figured her tax from the single taxpayer table above.

Dennis_Churaev [7]

Answer:

Tax= $ 7,173.5

Step-by-step explanation:

Her taxable income is $ 43,000 which lies in the tax category $ 31,850 to

$ 77,100.

Tax for $ 31,850 is $ 4,386

Plus 25% of the amount = ( $ 43,000- $ 31,850 )= $ 11,150 over

25 % of $ 11,150= $ 2,787.5

Total Tax= $ 4386 + $ 2787.5= $ 7,173.5

Step-by-step explanation:

yes

7 0

3 years ago

In a school of 330 students, 85 of them are in a drama club, 200 of them are in a sports team and 60 of them do both

Neko [114]

Answer:

105/330 = 21/66 = 7/22

7/22 is the answer I think

Step-by-step explanation:

n(U) = 330

n(A) = 85

n(B) = 200

n(A n B) = 60

Now,

n(A U B) = n(A) + n(B) - n(A n B)

or, n(A U B) = 85 + 200 - 60

or, n(A U B) = 285 - 60 = 225

Now,

n(A U B) compliment = n(U) - n(A U B)

n(A U B) compliment = 330 - 225

so, n(A U B) compliment = 105

Now,

probability = 105/330

8 0

2 years ago

I thought of a two-digit number. The digits of my number are different. The unit digit of my number is the tens digit raised to

earnstyle [38]

28.

2 to the third power is 8. Therefore, the answer is 28.

Hope this helps!

4 0

3 years ago

When graphing the inequality y > 3x + 4, you will use a solid line iristead of a dotted line-

Alexus [3.1K]

Answer:

true

Step-by-step explanation:

7 0

2 years ago